Analysis of Turbulent Boundary Layer Jet Flow Pattern of TPS Standard Nozzle

Abstract

The design of the standard nozzle affects the air mass flow calibration accuracy of TPS. The relationship between the outlet diameter and the jet flow pattern is studied by performing jet simulation simulation on the three outlet size standard nozzles under the same boundary conditions. Through the simulation results, it can be seen that the outlet diameter under a single variable determines the value and range of the jet Mach number, which will cause a huge change in the mixing zone of the turbulent boundary layer, which directly affects the turbulent kinetic energy and has a linear relationship with the mass flow rate.